Mathematics is the art of giving the same name to different things.

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

The most important thing in communication is hearing what isn't said.

我不需要认可，我需要结果。

语言是一种自由创造的过程；其法则和原则是固定的，但生成原则的使用方式是自由且无限多样的。